org.bouncycastle.x509.extension.SubjectKeyIdentifierStructure Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of bcprov-jdk16 Show documentation
Show all versions of bcprov-jdk16 Show documentation
The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.6.
package org.bouncycastle.x509.extension;
import java.io.IOException;
import java.security.PublicKey;
import java.security.cert.CertificateParsingException;
import org.bouncycastle.asn1.ASN1InputStream;
import org.bouncycastle.asn1.ASN1OctetString;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.x509.AuthorityKeyIdentifier;
import org.bouncycastle.asn1.x509.SubjectKeyIdentifier;
import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
/**
* A high level subject key identifier.
*/
public class SubjectKeyIdentifierStructure
extends SubjectKeyIdentifier
{
private AuthorityKeyIdentifier authKeyID;
/**
* Constructor which will take the byte[] returned from getExtensionValue()
*
* @param encodedValue a DER octet encoded string with the extension structure in it.
* @throws IOException on parsing errors.
*/
public SubjectKeyIdentifierStructure(
byte[] encodedValue)
throws IOException
{
super((ASN1OctetString)X509ExtensionUtil.fromExtensionValue(encodedValue));
}
private static ASN1OctetString fromPublicKey(
PublicKey pubKey)
throws CertificateParsingException
{
try
{
SubjectPublicKeyInfo info = new SubjectPublicKeyInfo(
(ASN1Sequence)new ASN1InputStream(pubKey.getEncoded()).readObject());
return (ASN1OctetString)(new SubjectKeyIdentifier(info).toASN1Object());
}
catch (Exception e)
{
throw new CertificateParsingException("Exception extracting certificate details: " + e.toString());
}
}
public SubjectKeyIdentifierStructure(
PublicKey pubKey)
throws CertificateParsingException
{
super(fromPublicKey(pubKey));
}
}